Background: Melanin pigmentation of the gingiva appears in all ethnicities. Excessive is an esthetic concern that has increased awareness about depigmentation procedures. This epidemiological study aims to find correlation between skin color and gingival Sulaimani Governorate, Kurdistan/Iraq. Subjects Methods: A total 820 apparently healthy non-smokers, including 338 males 482 females with ging...

OBJECTIVE to describe the prevalence coefficients and characterize cases of microcephaly at birth in Brazil from 2000-2015. METHODS this is a descriptive study with data from the Information System on Live Births (Sinasc). The coefficients were calculated by region and characteristics of mothers and live births (LB). RESULTS the annual average number of microcephaly cases was 164 for the pe...

OBJECTIVE: to describe abandonment rates according to sociodemographic, clinical and epidemiological characteristics of new tuberculosis cases being treated in Pernambuco State, Brazil. METHODS: this is a descriptive ecological study using data from the Information System for Notifiable Diseases from 2001 to 2014; the abandonment rate was calculated by the Regional Administration on Health (G...

The effects of osmotic concentration, ionic strength, and pH on the myofilament lattice spacing of intact and skinned single fibers from the walking leg of crayfish (Orconectes) were determined by electron microscopy and low-angle X-ray diffraction. Sarcomere lengths were determined by light diffraction. It is demonstrated that the interfilament spacing in the intact fiber is a function of the ...

Applied to skin color, the sexual selection hypothesis proposes that male preference for light-skinned females explains the presence of light skin in areas of low solar radiation. According to this proposal, in areas of high solar radiation, natural selection for dark skin overrides the universal preference of males for light females. But in areas in which natural selection ceases to act, sexua...

The role played by ADP in modulating cross-bridge function has been difficult to study, as it is hard to buffer ADP concentration in skinned muscle preparations. To solve this, we used an analog of ADP, spin-labeled ADP (SL-ADP). SL-ADP binds tightly to myosin but is a very poor substrate for creatine kinase or pyruvate kinase. Thus, ATP can be regenerated allowing well-defined concentrations o...

BACKGROUND Confluent and reticulated papillomatosis (CARP), also known as Gougerot-Carteaud syndrome, is a rare disorder. It usually presents as hyperkeratotic brown papules that coalesce into plaques with a reticulated periphery on the central trunk of young adults. Confluent and reticulated papillomatosis is most often clinically confused with tinea versicolor and usually does not respond to ...

Skinned fibers from the normal human heart with the beta-myosin heavy chain (ventricular fibers) revealed both a higher force generation per cross section and a higher Ca2+ sensitivity than skinned fibers with the alpha-myosin heavy chain (atrial fibers). The relation between isometric ATPase activity and isometric tension of atrial fibers was higher than that of ventricular fibers. Since the A...