Diverse and highly differentiated lava suite in Jezero crater, Mars: Constraints on intracrustal magmatism revealed by Mars 2020 PIXL.

The Jezero crater floor features a suite of related, iron-rich lavas that were examined and sampled by the Mars 2020 rover Perseverance, and whose textures, minerals, and compositions were characterized by the Planetary Instrument for X-ray Lithochemistry (PIXL). This suite, known as the Máaz formation (fm), includes dark-toned basaltic/trachy-basaltic rocks with intergrown pyroxene, plagioclase feldspar, and altered olivine and overlying trachy-andesitic lava with reversely zoned plagioclase phenocrysts in a K-rich groundmass. Feldspar thermal disequilibrium textures indicate that they were carried from their crustal staging area.

Single-cell transcriptomics predict novel potential regulators of acute epithelial restitution in the ischemia-injured intestine.

Intestinal ischemic injury damages the epithelial barrier predisposes patients to life-threatening sepsis unless that barrier is rapidly restored. There is an age-dependency of intestinal recovery in that neonates are the most susceptible to succumb to disease of the intestinal barrier versus older patients. We have developed a pig model that demonstrates age-dependent failure of intestinal barrier restitution in neonatal pigs which can be rescued by the direct application of juvenile pig mucosal tissue, but the mechanisms of rescue remain undefined.

A randomised double-blind, placebo-controlled trial of pramipexole in addition to mood stabilisers for patients with treatment-resistant bipolar depression (the PAX-BD study).

Background: Options for 'treatment-resistant bipolar depression' (TRBD) are limited. Two small, short-term, trials of pramipexole suggest it might be an option.

Aims: To evaluate the clinical effectiveness and safety of pramipexole in the management of TRBD.

[Implementation of teledermatological consultations at Leipzig University Medical Center].

Background: Numerous patients admitted to a general hospital present skin changes as secondary findings. Approximately 800 dermatological consultations are performed annually at the Leipzig University Medical Center.

Objectives: The aim of this study was, after implementation of teledermatological consulting, the retrospective evaluation of that and the resulting satisfaction of the physicians involved.

[Cutaneous ulceration in dermatomyositis : Case reports with positive anti-NXP-2/anti-TIF1-gamma antibody status].

Painful ulcerations developed in a 33-year-old woman with anti-NXP-2-positive dermatomyositis in the facial and trunk areas and a 67-year-old woman with TIF1-gamma-positive dermatomyositis on the hands, while undergoing systemic therapy with azathioprine or low-dose methylprednisolone and cyclic administration of intravenous immunoglobulins (IVIG), respectively. In the laboratory workup, the anti-MDA‑5 antibody status remained negative and the creatine kinase (CK) normal in both patients, while histopathological examinations were nonspecific. Intensive topical class 4 corticosteroid therapy and continuation of the immunosuppressive or immunomodulating therapy led to healing of the ulcerative skin lesions.