ClarksRosilla Keene 27nqJjwgx

ClarksRosilla Keene 27nqJjwgx
ClarksRosilla Keene
Fig. 1.

The hair follicle as a model system to study stem cells. ( A ) A schematic of the hair follicle stem cell niche, which resides in the lower part of the follicle and comprises epithelial cells (the bulge and the hair germ) and mesenchymal cells (dermal papilla). Many cells are in contact with this niche. A basement membrane (blue) surrounds the hair follicle, along with a dermal sheath made of fibroblasts, connective tissue and macrophages. Nerve endings (purple) surround the bulge (dark green) and the arrector pili muscle (orange) inserts into the bulge. The melanocyte stem cells (melanoblasts; black) are also located in the bulge. For simplicity, the immune cells have been excluded. ( B ) The lower part of the hair follicle is organized into two different epithelial compartments, the hair germ (red) and the bulge (green), and the mesenchymal dermal papilla. The bulge contains bona fide epithelial stem cells and is positive for epithelial markers, such as integrin alpha 6 (not shown) and the cell surface glycoprotein CD34 (green). The hair germ is enriched for the adhesion molecule P-cadherin (red) and contains the epithelial progenitors that initiate a new round of regeneration. The epithelial cells are delineated by a dashed line and the mesenchymal dermal papilla cells by a solid line. All nuclei are marked in blue with DAPI. Scale bar: 50 μm.

BCBGeneration Remmy hBIafqpI6b
Skip to Next Section

The hair follicle stem cell niche is composed of two epithelial compartments during quiescence – the bulge and its progeny, the hair germ ( Panteleyev et al., 2001 ; Ito et al., 2004 ; Saucony Originals Bullet Original Sneaker Womens 8rGZ7qR1lS
; Zhang et al., 2009 ). Although grafting and single-cell labeling experiments have shown that bulge cells are bona fide stem cells, there is no such definitive evidence that hair germ cells are stem cells. Gene expression analysis shows that the hair germ possesses features that are distinct from the dormant bulge compartment ( Greco et al., 2009 ; Fuchs, 2009 ). During hair follicle regeneration, new hair follicle growth is accomplished in two distinct activation steps. First, the hair germ cells are activated in response to mesenchymal signals coming from the dermal papilla ( Fig. 1 ; Box 1 ); this step initiates hair follicle growth. Second, once the growth phase has advanced, the bulge stem cells become activated to contribute to hair growth ( Greco et al., 2009 ).

bernie mevTexas Cindy 7okPQtUMfJ
Skip to Next Section

Although the hair follicle system provides an example of tight temporal and spatial control of stem cells, evidence suggests that a similar compartmentalized organization of other tissue stem cell niches might also exist.

No longer available: Temporarily not available: Approved for marketing:
Describes the category of expanded access under U.S. Food and Drug Administration (FDA) regulations. There are three types of expanded access:
Individual Patients Intermediate-size Population Treatment IND/Protocol
An arm type in which a group of participants receives the intervention/treatment that is the focus of the clinical trial.
In certain circumstances, a sponsor or investigator may request an extension to delay the standard results submission deadline (generally one year after the primary completion date ). The request for an extension must demonstrate good cause (for example, the need to preserve the scientific integrity of an ongoing masked trial). All requests must be reviewed and granted by the National Institutes of Health. This process for review and granting of extension requests is being developed. See Delay Results Type in the Results Data Element definitions for more information.
A type of intervention model describing a clinical trial in which groups of participants receive one of several combinations of interventions. For example, two-by-two factorial assignment involves four groups of participants. Each group receives one of the following pairs of interventions: (1) drug A and drug B, (2) drug A and a placebo, (3) a placebo and drug B, or (4) a placebo and a placebo. So during the trial, all possible combinations of the two drugs (A and B) and the placebos are given to different groups of participants.
The date on which the study record was first available on There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
The date on which the study sponsor or investigator first submitted a study record to There is typically a delay of a few days between the first submitted date and the record's availability on (the first posted date).
The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
U.S. Public Law 110-85, which was enacted on September 27, 2007. Section 801 of FDAAA amends Section 402 of the U.S. Public Health Service Act to expand and create a clinical study results database . For more information on FDAAA 801, see the Havaianas Slim Metal Mesh Flip Flops L6IDA
page on this site.
Describes the organization that provides funding or support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting. Organizations listed as sponsors and collaborators for a study are considered the funders of the study. refers to four types of funders:
A type of eligibility criteria that indicates whether eligibility to participate in a clinical study is based a person's self-representation of gender identity or gender (yes, no). Gender is distinct from sex .
A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
A group of people who review, approve, and monitor the clinical study's protocol . Their role is to protect the rights and welfare of people participating in a study (referred to as human research subjects), such as reviewing the informed consent form . The group typically includes people with varying backgrounds, including a community member, to make sure that research activities conducted by an organization are completely and adequately reviewed. Also called an institutional review board, or IRB, or an ethics committee.

For more information, see Participating in Studies on this site.

A type of eligibility criteria . These are the reasons that a person is allowed to participate in a clinical study.
A process used by researchers to communicate to potential and enrolled participants the risks and potential benefits of participating in a clinical study.

For more information, see Participating in Studies on this site.

The document used in the informed consent or process.
The general design of the strategy for assigning interventions to participants in a clinical study. Types of intervention models include: single group assignment , parallel assignment , cross-over assignment , and factorial assignment .
A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
A type of clinical study in which participants are assigned to groups that receive one or more intervention/treatment (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes. The assignments are determined by the study's protocol . Participants may receive diagnostic, therapeutic, or other types of interventions.
A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator .
The most recent date on which changes to a study record were made available on There may be a delay between when the changes were submitted to by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
The most recent date on which the study sponsor or investigator submitted changes to a study record to There is typically a delay of a few days between the last update submitted date and when the date changes are posted on (the last update posted date).
The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown .
Countries in which research facilities for a study are located. A country is listed only once, even if there is more than one facility in the country. The list includes all countries as of the last update submitted date; any country for which all facilities were removed from the study record are listed under removed location countries .
In the search feature, the Location terms field is used to narrow a search by location-related terms other than Country, State, and City or distance. For example, you may enter a specific facility name (such as National Institutes of Health Clinical Center) or a part of a facility name (such as Veteran for studies listing Veterans Hospital or Veteran Affairs in the facility name). Note: Not all study records include this level of detail about locations.
A clinical trial design strategy in which one or more parties involved in the trial, such as the investigator or participants, do not know which participants have been assigned which interventions. Types of masking include: open label, single blind masking, and double-blind masking.
A unique identification code given to each clinical study record registered on The format is "NCT" followed by an 8-digit number (for example, NCT00000419). Also called the identifier .
An arm type in which a group of participants does not receive any intervention/treatment during the clinical trial.
A type of clinical study in which participants are identified as belonging to study groups and are assessed for biomedical or health outcomes. Participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does not assign participants to a specific interventions/treatment .
The general design of the strategy for identifying and following up with participants during an observational study . Types of observational study models include cohort, case-control, case-only, case-cross-over, ecologic or community studies, family-based, and other.
An adverse event that is not a serious adverse event , meaning that it does not result in death, is not life-threatening, does not require inpatient hospitalization or extend a current hospital stay, does not result in an ongoing or significant incapacity or interfere substantially with normal life functions, and does not cause a congenital anomaly or birth defect; it also does not put the participant in danger and does not require medical or surgical intervention to prevent one of the results listed above.
Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
In the search feature, the Other terms field is used to narrow a search. For example, you may enter the name of a drug or the NCT number of a clinical study to limit the search to study records that contain these words.
For clinical trials , a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies , a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure .
A type of intervention model describing a clinical trial in which two or more groups of participants receive different interventions. For example, a two-arm parallel assignment involves two groups of participants. One group receives drug A, and the other group receives drug B. So during the trial, participants in one group receive drug A "in parallel" to participants in the other group, who receive drug B.
A summary of the progress of participants through each stage of a clinical study, by study arm or group/cohort . This includes the number of participants who started, completed, and dropped out of the study.
The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA) . The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0) , Phase 1 , Phase 2 , Phase 3 , and Phase 4 . Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
A phase of research to describe clinical trials that focus on the safety of a drug. They are usually conducted with healthy volunteers, and the goal is to determine the drug's most frequent and serious adverse events and, often, how the drug is broken down and excreted by the body. These trials usually involve a small number of participants.
A phase of research to describe clinical trials that gather preliminary data on whether a drug works in people who have a certain condition/disease (that is, the drug's effectiveness). For example, participants receiving the drug may be compared to similar participants receiving a different treatment, usually an inactive substance (called a placebo ) or a different drug. Safety continues to be evaluated, and short-term adverse events are studied.
A phase of research to describe clinical trials that gather more information about a drug's safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs. These studies typically involve more participants.
A phase of research to describe clinical trials occurring after FDA has approved a drug for marketing. They include postmarket requirement and commitment studies that are required of or agreed to by the study sponsor. These trials gather additional information about a drug's safety, efficacy, or optimal use.
Describes trials without FDA-defined phases , including trials of devices or behavioral interventions.
An inactive substance or treatment that looks the same as, and is given in the same way as, an active drug or intervention/treatment being studied.
An arm type in which a group of participants receives a placebo during a clinical trial.
The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure . Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "estimated" primary completion date is the date that the researchers think will be the primary completion date for the study.
In a clinical study's protocol , the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment . Most clinical studies have one primary outcome measure, but some have more than one.
The main reason for the clinical trial . The types of primary purpose are: treatment, prevention, diagnostic, supportive care, screening, health services research, basic science, and other.
The person who is responsible for the scientific and technical direction of the entire clinical study.
The written description of a clinical study. It includes the study's objectives, design, and methods. It may also include relevant scientific background and statistical information.
National Library of Medicine (NLM) staff perform a limited review of submitted study records for apparent errors, deficiencies, or inconsistencies. NLM staff identify potential major and advisory issues and provide comments directly to the study sponsor or investigator. Major issues identified in QC review must be addressed or corrected (see First submitted that met QC criteria and Results first submitted that met QC criteria ). Advisory issues are suggestions to help improve the clarity of the record. NLM staff do not verify the scientific validity or relevance of the submitted information. The study sponsor or investigator is responsible for ensuring that the studies follow all applicable laws and regulations.
A type of allocation strategy in which participants are assigned to the arms of a clinical trial by chance.
Not yet recruiting:

Cultural competence is a set of congruent behaviours, attitudes and policies that come together in a system, agency, or among professionals and enable effective work in cross-cultural situations [ 25 ]. Across the literature, associations between perceptions of racial and/or ethnic discrimination and poor service utilisation in the provision of healthcare services to culturally diverse communities living in developed countries are reported [ 26 ]. A culturally competent system may have the potential to reduce racial and ethnic health disparities [ 27 ]. A study in the U.S. demonstrated that perceived discrimination is associated with delays in people seeking care and adhering to medical advice [ 28 ]. Studies show that active outreach, education and health promotion activities can increase utilisation of healthcare services for communities from refugee backgrounds (specifically, in this case, from Sub Sahara African and Afghani, Iraqi and Nepali backgrounds) [ Georgia Boot GB00198 3 Giant Cranberry Romeo Shoe Womens 5zyFGCecq1
]. Such strategies include using local ethnic media, as well as active engagement by disseminating health and health services information through personal and community networks [ Dr Martens V Castel CGKjfz7F
]. The Australian National Health and Medical Research Council (NHMRC) has previously called for research to be conducted to improve the effectiveness of culturally competent healthcare systems in increasing client satisfaction with care received, enhancing client health and reducing inappropriate racial and ethnic differences in use of health services or in received or recommended treatment [ Adrianna PapellTiana 52T1oVO
]. Woodland and colleagues have identified ten elements that provide a practical framework for improving access, equity and quality of care in service delivery for newly arrived refugee children [ 31 ]. These include: 1) routine comprehensive health screening; 2) co-ordination of initial and ongoing health care; 3) integration of physical, developmental and psychological health care; 4) consumer participation; 5) culturally and linguistically appropriate service provision; 6) inter-sectoral collaboration; 7) accessible and affordable services and treatments; 8) data collection and evaluation to inform evidence-based practice; 9) capacity building and sustainability and 10) advocacy. The authors suggest that these elements of good practice can be applied to reduce the gap between health needs and the services that are currently available [ 31 ].

A socioecological approach attends to the interaction of individual, community, institutional and societal factors affecting health and wellbeing. This approach demonstrates the complexity of the interactions between health, its determinants and its outcomes [ Nine West Fierceness Slide Block Heel Pg4SRJE0HA
] and can provide insight into dealing with complex health issues as well as addressing basic health problems [ 33 , 34 , 35 ]. It highlights the importance of a holistic view of health, including physical, psychological, social and spiritual dimensions. It is generally accepted that an individual’s health is determined by a range of factors, including environmental and economic factors, many of which are outside the direct control of the individual. In some countries, social determinants may include circumstances such as geography, ethnicity and socioeconomic status [ 36 ]. These social determinants of health are commonly used within public health and health promotion literature to provide a greater understanding of the equality and equity issues found in health outcomes within communities. The work of the Commission on Social Determinants of Health of the World Health Organisation has significantly advanced understanding of the impacts of social determinants on health outcomes. Of particular pertinence to this research, the Commission’s final report states that ‘investment in the early years provides one of the greatest potentials to reduce health inequities within a generation…that mothers and children need a continuum of care from pre-pregnancy, through pregnancy and childbirth, to the early days and years of life’[ 37 ](p4). The Commission accordingly calls for health care systems to be based on principles of equity, disease prevention and health promotion.


Apply Now

Car Loans

Auto Refinance




RoadLoans Reviews

Contact Us

  • Application Questions (888) 276-7202
  • Customer Service (888) 222-4227

Connect With Us

©2018 ® is a trademark of Santander Consumer USA Inc. All rights reserved. Call Us: (888) 276-7202 | NMLS Consumer Access ID 4239

Privacy Security | Fair Lending | Terms And Conditions | Contact Us | Clarks Fianna Ellie HqBSgL5